Apparatus for fireproofing structural metal



` A: Oct. 28, 1930. R v YEAGERv APPARATUS FOR FIREPROOFING STRUCTURALMETAL Filed Feb. 7, 1928 prises a series of spacing blocks which may yPatented ct. 28, 1930 BOY v. Ynnsnmor Dnspnonvns, IowaE 'e'ArPARA'rUsfroR FIREPROOFINGSTRUGTURAL' METALQ' g l @Ln- Application ledy.February 7, SerialjNo. v

i vThe object of my invention is to provide ymeans of simple andinexpensive construction that maybe readily,- quicklyandeasily'appliedto metal Vbuilding structures,v suchV for. instance as I-'beams andI-columns, for the purpose of enablingthe builder .toreadilyf quicklyland easily apply a fireproongl mate? rial to the structural metalmembers.. My inventionconsists in the constructio-n,

1o arrangement and combination of the various parts ofl the iireproolingmateriahxwhereby theA objects contemplatedare attained, ashereinaftermore fully. set forth, .pointed out in my claims, andillustrated inthe accompanying drawings, in which: F`gure 1 shows aperspective view, of Aone of my Yimproved.spacingblocks and wedge lockdevices. Figure-2 shows a horizontal sectional view 2 0 of a structuralI-colinnn having my improved i l ireproong applied thereto. as in use'.

Fi ure 3 shows a vertical sectional view of an I- earn and a portion ofaconcrete floor supported thereby and having my improved iireproongapplied to the beam; and f' Figure 4 shows a side elevation of a part ofa structural metal I-column having my improved reproofincr deviceapplied thereto, a portion. of thereprooiing being broken 30 away toillustrate the arrangement kand local tion of the spacing blocks.

Referring to the accompanying drawings,`

I have used the reference numeral 10 to indicate a metal I-beam ofordinary construction.

My improved fireprooiing .aparatus combe made of gypsum or the like, andindicated by the numeralll. Each of these spacing blocks has in onecorner, atapered notch 12,

-Y 40 and thisfnotch is so shaped that one of its faces will lie flatagainst one end of the I- beam to which it is applied, as shownfinFigure 2, and the other faceV ofthe notch will stand at an obtuse anglerelative lto ,they first n mentioned face of the notch, as shown inFig-Y ure 2.

For securing this spacing block to the columin, I have provided a wedgeshaped locking device indicated by the numeral 13, 5-0 and this lockingdevice has formed integral with it a rib efbuilder places a coating``o`f plaster' or the likeon both side,

otherlf engaging the adjacent-portion ofthe I-beainA flange, as shown'in' Figure Q2, Tand hence 'as soon' as theplaster hasset :andharderred, the jspacinggblpck willpbe firmly supportedin-positionL',

to.,V all four edges of 1the flanges ofthe columnv in; positions spacedapart from leach i other as shownfin' Figure`4-`-l 1 then'ftake 'sheets'of plasterboard 15'and place'them in PStion et; I

restin'gupon the ribsll yoftheadjacent space ing blocks, yas shown inFigureZ. Itemp'of` `rarily supportf these 'plaster boards in positionby' smally portions vof l'cement '16J which may bey applied at intervalsthroughout the heighty of the V'plaster board and whichform a bond-betweenthe adj acent'- surfaces vof the plaster'board'and thespacingblocksiv` I then apply sheets of plaster board 17 to the outersurfaces ofthe spacingbloclrs, forming a rectangular figure andcompletely enclosing the columnv and the spacing blocks.` 1I then pourplastic l mater`ial,f 'such `as'gypsum,I in the spaces betweenthejplaster board 15 and the adjacent plasterfboardlZand also between sothe`plaster`-board17 and the 'adjacentv ends of/the 'columnfj Thisplastic materia-L will completely ll the"saidjspacesgandjalso' thelspaces between the-spacing 4blocks A11,1 and instance, two" inches inthickness, ind the spaces betweenthe yweb of the beam' and the plasterboards 15`v become "dead air "spaceS., which of themselves performreproofing Jfunctions and the Vexpense ofthe fireproofing 190 I'a'pply aseries "of -thefspac ing blocks 11 i fireproo ng structure for the uppersurfaceVVV of the beam. When my improved lireproofing method is used forbeams that extend horizontally, the plastic `material nis poured;

in through the top after the spacing blocks and plaster boards have:beenapplied tthe bottomandsides ofthe beam.

The outer'V plaster' board layers may Vbe temporarily held in positionbeforeV the plasti'c material is pouredV between themeither 4 .L.byltempor'a'rily tackingfthem to' the spacing f 2O blocks lea-orl byputting a band 'around the entire column, which-later maylbe removed.

With my improved apparatus, a column be adequately?firepro'ofed withamini mum o'flabor andin a relatively-short time, because all thattheoperator does is to 'take the precast/g spacing blocks andi wedgesand dip the-wedges in plastery and then'place the blocks at spacedintervals throughout lthe length of the column 'andi put the wedges inposition. 'The plaster Vwill cause an initial adhesion. suficient-tohold the spacing blocks pes'itionunt-l the `plaster has set andhardene'd, fand 'when that takes place the blocks A areheld quitefirmly. v The builder' then cuts the plaster boards l5 tov proper widthsand simplyplaces them in-position resting against the ribs I4 andtemporarily supports these plaster boards 15in position by smallparticles' of plaster applied at spaced intervals to the' plaster boardvand the spacing blocks.

f Then the four outer sheets of plaster board 56 f metal,"comprising ajseries of spacing blocks are placed in position-and temporarily heldeither by tacking.through them into the spacing blocks, or by tying awire around all four of them. Y Then theplastic material, such asgypsum, is poured'infrom the top to completely'j'fill the spaces betweenthe spacing blocksandplasterboard.'

I claim as my invention:

l. VA:ireprooling' apparatus for structural kmade of yfireprooingmaterial, each formed with a V-shapednotch in one edge, a

. jl-shaped wedge for each spacing block having a rib-projectedoutwardlyfrom it, said Wedge being designed to receive a coating gof plaster andto be placed in the wedge shapednoteh and to be held in such position bythe bonding action of said plaster, plaster board sheets yshaped to restagainst the said ribsV of the wedges and tolie parallel with, and spacedapart from, the web of the structural metal, a seriesof plaster boardsheets placed againstthe outerV surfaces of the spacing blocksv andcompletely encircling the block andthe' structural metal.`

structural metal, and plastic material inserted in the spaces betweenthe plaster boards that engage the ribs ofthe spacing blocks and theouter plaster board-s at the `sides of the structural metal, and alsothe spaces between the ends of the structural metal webs and the plastervboardatthe out- 'sideof the vends. v V2.Y VIna ireprooling apparatusfor structura l metal,y the combination of a substantiallymrectangularspacing block made of plastic material -andh'aving a notch at one cornerto receive the'edge ofthe structural material and shaped to enter saidrnotch and to engage one side lofthe 'notch an'dtheadj acent side vof thestructural metal, and being designed to receive layers of .plaster to:cause it `tobond with the adiacent'surfaces "of the designed to receivelayers vof plaster to ycause f' it to bond with the adjacent surfacesofthe block and the structural metal, and a rib` projected outwardly fromsaidwedge and designe'd'to forma support for the layerof Iplasterboa-rd. il. In a fireprooli'ng apparatus for structural metal,the combination of' a series of blocks, each having a notch toreceive-an 'edge vof a structural'meta'l member,'means for temporarilyfixing said blocks to the structural metal member, sheets' of plastervboard fixed to said blocks and surrounding the structural metal memberand spaced apart from it'by'said blocks, and abody of plasticmaterial'between the plaster board sheets and bonded to the blocks andthe structural metal to permanently connect all ofsaid parts.

'5.'In' a ireproongapparatus for lstructural metal,'the combination of aseries of blocks, 4each lhaving a notch to receive an edge .of astructuralV metal member, means for temporarily fixing said .blockstothe structural metal member, sheets of plaster inetalniemben-awedgemade-'offireproong los ris

board fixed to' said-blocks and surrounding boards secured to the outersurfaces of the blocks. E Y l A Des Moines, Iowa,"January 11, 1928. ROYV. YEAGER.

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